G01N 27/00
Investigating or analysing materials by the use of electric, electrochemical, or magnetic
Official title: Investigating or analysing materials by the use of electric, electrochemical, or magnetic means (G01N3/00 – G01N25/00 take precedence; measurement or testing of electric or magnetic variables or of electric or magnetic properties of materials G01R)
G01N27/00 (Investigating or analysing materials by the use of electric, electrochemical, or magnetic) appears on 32,697 US grants and 32,653 published applications in this corpus.
Search patents in G01N- Granted patents
- 32,697
- Published applications
- 32,653
- Assignees
- 9,580
- Inventors
- 58,398
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 257 | 0 |
| 1977 | 239 | 0 |
| 1978 | 242 | 0 |
| 1979 | 202 | 0 |
| 1980 | 286 | 0 |
| 1981 | 282 | 0 |
| 1982 | 283 | 0 |
| 1983 | 222 | 0 |
| 1984 | 275 | 0 |
| 1985 | 295 | 0 |
| 1986 | 299 | 0 |
| 1987 | 349 | 0 |
| 1988 | 307 | 0 |
| 1989 | 447 | 0 |
| 1990 | 375 | 0 |
| 1991 | 370 | 0 |
| 1992 | 408 | 0 |
| 1993 | 385 | 0 |
| 1994 | 442 | 0 |
| 1995 | 430 | 0 |
| 1996 | 417 | 0 |
| 1997 | 360 | 0 |
| 1998 | 433 | 0 |
| 1999 | 454 | 0 |
| 2000 | 478 | 0 |
| 2001 | 486 | 161 |
| 2002 | 523 | 686 |
| 2003 | 564 | 793 |
| 2004 | 546 | 907 |
| 2005 | 472 | 916 |
| 2006 | 537 | 772 |
| 2007 | 455 | 785 |
| 2008 | 438 | 790 |
| 2009 | 437 | 1020 |
| 2010 | 543 | 1092 |
| 2011 | 649 | 1036 |
| 2012 | 767 | 1094 |
| 2013 | 913 | 1281 |
| 2014 | 1017 | 1686 |
| 2015 | 1178 | 1778 |
| 2016 | 1239 | 1661 |
| 2017 | 1423 | 1866 |
| 2018 | 1358 | 1842 |
| 2019 | 1594 | 1959 |
| 2020 | 1657 | 1935 |
| 2021 | 1470 | 1765 |
| 2022 | 1361 | 1643 |
| 2023 | 1257 | 1470 |
| 2024 | 1228 | 1474 |
| 2025 | 1165 | 1280 |
| 2026 | 883 | 961 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- G01N 27/26Investigating or analysing materials by the use of electric, electrochemical, or magnetic18,464
- G01N 27/02Investigating or analysing materials by the use of electric, electrochemical, or magnetic9,425
- G01N 27/72Investigating or analysing materials by the use of electric, electrochemical, or magnetic3,208
- G01N 27/62Investigating or analysing materials by the use of electric, electrochemical, or magnetic2,289
- G01N 27/60Investigating or analysing materials by the use of electric, electrochemical, or magnetic322
- G01N 27/002Investigating or analysing materials by the use of electric, electrochemical, or magnetic89
- G01N 27/92Investigating or analysing materials by the use of electric, electrochemical, or magnetic45
- G01N 27/007Investigating or analysing materials by the use of electric, electrochemical, or magnetic17
Recent patents
- Method and tool for inspecting the condition of the internal surface of pipes6 Oct 2026US 12,753,874 B2Petroleo Brasileiro S.A. - Petrobras
- Electrically patterned polycrystalline diamond compact for sensing applications6 Oct 2026US 12,754,083 B2Schlumberger Technology Corporation
- Corrosion estimation method and device6 Oct 2026US 12,754,117 B2NTT, Inc.
- Construction material assessment method and systems6 Oct 2026US 12,754,146 B2
- Electrode holder6 Oct 2026US 12,754,156 B2Mettler-Toledo Instruments (Shanghai) Co., Ltd.
- An organ container, an impedance meter for the organ container, and a method for defining a deterioration state of an organ8 Oct 2026US 2026/0305604 A1Tampere University Foundation sr
- Electrocardiography patch8 Oct 2026US 2026/0306001 A1Bardy Diagnostics, Inc.
- Composition comprising antibody that binds to domain ii of her2 and acidic variants thereof8 Oct 2026US 2026/0308274 A1Genentech, Inc.
- A system for identifying microbial growth8 Oct 2026US 2026/0308657 A1Microplate Dx Ltd.
- Substrate inspection apparatus8 Oct 2026US 2026/0309658 A1Samsung Electronics Co., Ltd.
Most cited
By later US patents
- Method of fabricating thin film sensors2,095US 5,391,250 AMiniMed Inc. · 1995
- Gastric treatment and diagnosis device and method1,899US 6,535,764 B2IntraPace, Inc. · 2003
- Process for producing an electrochemical biosensor1,891US 6,103,033 ATheraSense, Inc. · 2000
- Method of using a small volume in vitro analyte sensor1,793US 6,120,676 ATheraSense, Inc. · 2000
- Small volume in vitro analyte sensor1,656US 6,143,164 AE. Heller & Company · 2000